Выберите промежутки, на которых функция \(\displaystyle y=x^2{\small}\) убывает.

• \(\displaystyle (6;\,7)\)
• \(\displaystyle (-8;\,1)\)
• \(\displaystyle (-7;\,-5)\)
• \(\displaystyle (-5;\,0)\)
• \(\displaystyle (-7;\,7)\)
• \(\displaystyle (0;\,8)\)